fontanelle or fontanel /fon-tə-nelˈ/

1. A membrane-covered gap between the immature parietal bones in the skull of a fetus or infant
2. An opening for discharge (medicine)

• unseamed
• unseaming
• unseams
• unsearchable
• unsearchableness
• unsearchably
• unsearched
• unseason
• unseasonable
• unseasonableness
• unseasonably
• unseasonal
• unseasoned
• unseasoning
• unseasons
• unseat
• unseated
• unseating
• unseats
• unseaworthiness
• unseaworthinesses
• unseaworthy
• unseconded
• unsecret
• unsectarian